Current Etsy listing · Published source copy
3D Printed Fixed Gear Gear Chart with Chainline Ruler and Izumi Chain Wrench
A quick reference for track gearing, chainline, and cog changes.
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Full Etsy listing description
Everything
on the bench.
Published listing copy · verified against Etsy 2026-08-28
Optimize your time at the track with this all-in-one track cycling gear inches chart, designed with racing and training in mind. This fixed gear gear ratio chart is an essential tool for track cyclists, fixie riders, and bike mechanics.
Features:
Gear chart with your choice of chainring and cog ranges to fine-tune gearing for your race or training session.
High-contrast, large print embossed lettering that is easy-to-read at a glance, even for masters racers.
Chainline ruler to check your chainring alignment on fly against the 42 mm track standard tp maximize drivetrain efficiency.
Izumi square-nut wrench to hold that finnicky lock nut while swapping or installing chains.
Ideal For:
Track sprinters dialing in their kilo or team sprint gearing
Pursuiters fine-tuning for perfect cadence
Mechanics prepping multiple athlete setups between heats
Fixed gear crit racers needing fast gear swaps
Athletes doing over-geared or under-geared training sessions
Details:
Chart includes 6 chainrings and 4 cogs. Choose the size that best represents your gear options.
Please message with gear selection if ordering a custom size.
3 1/8" by 4 3/4"
Gear ratios use the nominal calculation: 27 times (chainring/cog) rounded to the nearest whole
Storage in extreme heat may cause minor warping--avoid leaving in hot cars in summer months